Delaware, 7.5 minute series (topographic) / mapped, edited, and published by the Geological Survey.

Bibliographic Details
Corporate Authors:	Geological Survey (U.S.) U.S. Coast and Geodetic Survey Delaware Geological Survey
Language:	English
Published:	Reston, Va. : U.S. Geological Survey, [1943?]
Subjects:	Delaware > Maps. Topographic maps. Maps.
Genre:	Maps. Topographic maps.
Physical Description:	maps : color ; on sheets 69 x 56 cm
Cartographic Data:	Scale 1:24,000 ; Polyconic projection or universal transverse Mercator projection (W 76°00ʹ00ʺ--W 75°00ʹ00ʺ/N 40°00ʹ00ʺ--N 38°00ʹ00ʺ).
Format:	Government Document Map

Description
Note:	Relief shown by contours and spot heights. Depths shown by isolines and soundings. "Compiled by photogrammetric methods from aerial photographs." Includes quadrangle location map. Beginning in the 1990's, editions include index to adjoining sheets. Photorevised sheets show changes in purple. Set includes various issues of some sheets. Some sheets are "Orthophotograph prepared from 1:80,000 scale color infrared aerial photograph." Some sheets mapped by U.S. Coast and Geodetic Survey. Some sheets have standard map series designation: Series V832. Cartographic material.
Call Number:	Arranged by sheet name - refer to index in Maps